Characterizing mixing in a slope density current
Started: February 2016
Supervisor: Hughes, G.
Description of Research
Turbulent buoyancy-driven flows arise commonly in both the natural and the built environments, and most previous studies have focused on cases where these flows are aligned with either the vertical or horizontal directions. However, buoyancy-driven flows are often confined by sloping boundaries, and the dynamics governing these flows against horizontal and sloping boundaries – density currents – differ as soon as the slope forms an angle with the horizontal of order a degree or more. Turbulence is typically energized along the current interface, leading to entrainment and mixing with the ambient fluid. Previous studies have attempted to characterize entrainment in a slope density current, but a consistent and robust understanding and parameterization of this behaviour is yet to emerge.
In this study, we adopt a new approach to characterize mixing in slope density currents.
Emily is a graduate with an MSc in Fluid Dynamics and Energetics from Paris-Saclay University, France.
Fluid Mechanics Research Student
Department of Civil & Environmental Engineering
Imperial College London SW7 2AZ